Metal-working apparatus.



H. G. DlWiSh METAL WORKING APPARATUS.

APPLmTmN man APR. so, |917.

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Patented Aug. 13, 1918,

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METAL WORKING APPARATUS.

APFLICATIGN FILED API. 30 19|?.

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mm1 WORKING APPARATUS.

APPLICATION FILED APR. 80. |911.

Patented 13, 1918.

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HENDERSON G. DAVIS, F SPRINGFIELD, MASSACHUSETTS, ASSIGNOB T0 GILBERT BAKKER MANUFACTURING COMPANY, 0F WEST SPRINGFIELD, MASSACHUSETTS, A.

CORPORATION 0F MASSACHUSETTS.

METAL-WORKING APPARATUS.

Specification of Letters Ixrtent.

Patented'Aug.-13,1918.

o all whom. it may concern:

Be it known that I, HENnERsoN G. Davis, a citizen of the United States of America, residing in Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Metal-Working Apparatus, of which the following is a specification.

This invention relates to a barrel maw .i0 chine or metal working apparatus. Its

particular purpose is to complete the formation 'of 'cans or barrels the sections of which have been first partially formed and then assembled together for the operation of the 'present apparatus. The invention is particularly designed to form barrels and like heavy containers and has to do with improved means for joining the heads of barrels to the cylindrical body portions, in improved means for manipulating the work itself while in the .machine and improved means generally for holding and operating the barrel and l applying toolsV thereto in the desired operations.

The art of joininrr the heads to cylindrical body portions to iorm cans or barrels is quite well known, and the present invention has for one old'ect to provide improved means particolari da `)ted to handle rather heav articles am. Work such articles to desire( form in a quick, convenient., and efiicient manner.

The objects Iof the invention will bebrought out more fully in the detailed dc.- scription ofthe combinations and sub-combinations of elementsdesigned for coperative functions in the formation of the barrel and thensuch objects will appear clearly in the appended claims which point out and define the invention The invention, in an embodimentat present preferred, is shown for illustrative purposes 'in the accompanying drawings, in which@ Figure 1* is a side elevational view with parts broken away 0f thel left hand portion of the machine;

Fig. 1b is a silniiar View 'oi the right hand Vportion of the machine; thief igure should l with Fig. Arial vien7 1'* to give a complete side eleva of the machine;

vFlg. 2 1s a sectional elevation. of the een tral portion of the machine showing' a barl rel supported therein;

"Fig 3 is a @ross sectional view taken on the line 3- -3 of Fig. l, showing the run-` sectional view taken on the line 7-7 of Y Fig. 1;

F1g. 8-1s a cross sectional view taken on the line Sf-S of Fig. 1b showing the braking mechanism;

Fi 9 is a sectional plan ,View takenl on the line 9-9 of Fig. 8;

Fig. 10'is a detail elevational view of one of the barrel supporting rolls;

Fig 11 is a cross sectional view thereof taken on the line 11-11 of Fig. 10;

Fi 12 is a cross sectional view taken on the line 12-12 of F s 2- Figs. 13, 14, and 1i areenl'arged fragmenl tarv sectional views illustratin the steps in )tuning the heads to the barre shell;

Fig. 1G is a cross sectional view taken on the line 16-16 of Figfla; i

Fig. 17 is an enlarged cross sectional view taken on the line 174-17 of Fig. 1*;

Fig.4 18 is an enlarged sectional elevation taken on the line 18-18 of Fig. 1'6 withy the parts shown in retracted position;

Fig. 19 is an enlarged sectional'plan'view taken on the line 19--1-9 of Fig. 1";

Fig. 20 is a detail 4sectional elevation taken on the lineQO-QO of Fig. 19;v

Fig. 21 is a sectional plan view of the.

valve for controlling the pressure rolls-of.

the machine and Fig. 22 is a cross sectional v#View of-the.

clutch.

The machine, in general, comprises 'a pit.

of alined rotatable chucks arranged for relative axial movement and adapted to grip and rotate the barrel; supporting devices 'upon which a partially fornied barrel may delivered from a e'uppl seperated' the be automatically trackway, when the chucksV are and supported in alnement with means to force the chucks together to clam said barrelftherebetween; sets of rolls a jacent each chuck, the rolls of each set being arranged to act successively on the heads -of the barrel as it is rotated to simulta- ',neously join the heads to the shell of the barrel by a crimping operation; mechanism Operable by separation of the chucks to strip the. barrel therefrom; and ejecting mechavnism to throw the' completed barrel out of the machine andupon adeliver-y runway. The means 4.for supporting and rotating the barrel willf'rst be described With pal.'- ticular referencet'o Figs. 1a and 1b. A repre- -sents the bed plate of the machine and mounted thereon at suitably spaced intervals are threeV edestals B. Mounted in the right hand p estal B is a driving shaft`25 which may be driven by any suitable means,

such as a' motorC (Fig. 1b) `suitably supported bed A. Rotatably mounted 1n the intermediate pedestal B is a. shaft 26 which -Iis alined with shaft and adapted to be operably connected to and disconnected 25 from .the'latter by a suitable clutch device. y The latter, as shown in Fig. 1", comprises a part 27 secured to shaft 26 and having a. cup shaped end.` Disposed within the latter i andY keyed to shaft 25 is a split ring 28, the end's o'fjvhich may be spread apart by pivoted levers 29 which in turn are varranged to :be separatedby a cam element 30 slidably mounted for axial-movement on shaft 25.

Element 30 is movable in an obvious man ner. by a lever 31, `pivoted intermedite its ends of the right' hand pedestakB, whereby shafts 25 and 26 may 'be operably connected and disconnected as desired. A section through the clutch is shown in Fig. 22 to .4Q indicate its general construction, but a clutch df otherconstrfuction may be used if more conveniert.-l The lever 3l is actuated by means tobe.; later described.

y`Fixed to" shaft 26 adjacentrpart 27 is a f5 brake drum 32 Figs. 1* and 8) vand on opposi sides thereof are brake shoes 33. The

latter "are mounted in. the upper ends of levers 34 pivoted intermediate their ends to a bracket secured to the intermediate pedes able' bracketl attached to the intermedia't`e f "pedestal B, as clearly'shown in Figs. 1b and 5&9. .When lever 31 lies in the position "',sliowm shafts 25 and 26 are connected: in an operable driving engagement; and the lower i 'ends of levers 3ft are drawn together intol .l l, the'positio'n shown in Figs. 8 and 9 so4 that,- -05 thedrinn32ifsafree from shoes33. WVhen.-

however, theelement 30 -iS moved to disconnect lshafts 25 and ,26, the levers 34 are spread apart by-rod 36 and links 35 with a toggle action,- as 'will be obvious from Fig. 9, to force shoes 33 against drum 32. Thus, 70 shaft 26 may `be uickly brought to rest when disconnected '(irom. shaft 25. l Fixed to the left hand end of shaft 26 is a chuck 37 (Fig. 1") which is adapted to be forced in a manner to be described into the cupped end of a barrel head a, as indlcated in Fig. 2.A ,The chuck 37 has a part of its periphery so formed as to snugly fit the. heada, so that the latter maybe rotated thereby, and preferably this part vis slightly tapered to facilitate the entrance and removal of the head. In axial alinement with chuck 37 and spaced therefrom is a chuck 38, of generally similar construction, which isadapted to engage asecond similarly formed barrel head. a. Chuck l38 is rotatably mounted, preferably by ball bearings-as indicated in Fig. l, on the end of a shaft 39. The latter is slidable in the left hand pedestal B but is held from rotation therein by means to be laterdescribed. Mounted on a bracket se cured to the left hand pedestal B and in alinexnent with shaft 39;, is' a cylinder 40 (Fig. 1*) and movable therein is a piston 41 secured to the. end of the shaft. Oppo 95' site ends of cylinder 40 are connected by pipes 42 and 43 to a two way valve' 44 to -whivch fluid under pressure is supplied by a pipe 45 from a suitable source. Valve 44 may be of any of the well known types and has not been` illustrated in detail since its y specific structure is unnecessary to an understanding of the invention. For the present purposes*` it will suflice to state that fluid' under pressure may be admitted to thecylinder ai() on either side of piston 41 and si inultaneously exhausted from the opposite side thereof through suitable connections with the valve 44C, whereby the shaft 39 and. chuck 38 may be moved axially toward 01?110 away from chuck 3T. The chuck 38 when retracted as shown in Figs. 6 and 19 permits a barrel to be fed into the mac ine.

The means for temporarily suppe` ting a barrel in alinement with chucks 37 and 38 115 while the latter is retracted willnextf be described. Referring to Figs. .1?, 3; and 6, extending between the left hand and the intermediate pedestal and slidably mounted therein are a pair of rods 46 which are ar- 120 rangedlin the samehorizontal plane, one on each side of tbe'axis of chucks 37 and 38, shown in Fig. 6. These rods are further supported in a pair of spaced brackets l) mounted on the bed plate A intermediate Ichucks 37 and 38. Supported from each rod 46 adjacent chuck 38 is a flanged roll 47 and adjacent chuck 37 is a relatively long un- V flanged roll 4,8. The detail of' ejxnounting best shown in Fi gs. 1'() and 11A in connection Awith a roll 4 7. The latter is rotatably mounted in 'a forked bracket 49 which is ver- .tically slidable relatively'to a bracket 50 to rod 46. A bolt 51 passes loosely through bracket 50 and is threaded into the lowerv end of bracket 49, whereby the separa- `tion of the two brackets may be limited by l the engagement of the head of bolt 51 wit Reille-lower end of bracket 50. (foiled aroundY ibolt 51 is a sprin 52 which tends to force bracket 49 upwariy to the limitallowed by bolt 51. On each side of the latter pins 53 4 .ied in bracket 49 pass downwardly and i5" loosely through bracket 5() to prevent rela- "rtiveV turning of the two brackets.

The rolls 47 are alincd with a trackl, when the chuck 38 is retracted as shown in Fig. 6. Track 54 has opstanding side flanges as shown in Figs. 3 and 6 and may advantageously consist of a channel iron as shown. Spaced from track 54 and in paral- .lel relation therewith is a similarly formed .track and both tracks are suitably supported from the floor `as shown in Fig. 3. Tracks 54 and extend from a platform E in downwardly inclinedl relation therewith to a. position above, and at alhorizontal distance away from the rolls 47 and 1.18. The ends f each trac-k adjacent the rolls are bent-upwardly, as shown in Fig. 3., to forni a trough to receive paint or the like as indicated at 56. The barrel comprises two heads aand a cylindrical shell Z1 (Fig. 2) andthesc parts, previously assembled, are placed on platform E and rolled onto thetrackways :5,4'and 55. As they roll downwardly there Lon, the flanges-c of the heads a are coated with paint 56. the barrels roll down the trackways, they acquire sutlicient momentum 4 to jump the splice between the ends of the :y trackwaysI and `the rolls ll' and 48 and lodge ,-i betweenvtlielatter. The `s"{.ui11,.s 52 yabsorb the shockiji-cceived by an incoming barrel in 45 an obvious manner, VThe assembled barrel partially formed may be placed on rolls 47 and 48'by hand or other means as desired The trackways 54 are illustrative only of one convenient means for the purpose.

In order that barrels of various lengths may be accon'n'nodated the rolls 48 are made relatively lone' as described and track 55 ismade adj ust'alle. Referring to Fig. 4, track 155 is held to its supportin frame by pins '57'which move in suitable ots ,in the frame, and the track is connected by two or more links 58 to. bell cranks 59 pivoted on the frame. The bell cranks may be moved 1n anually whendesired by a slide rod tSQ, and in the under face of the lat-ter are a plurality of recesses (Fig. 5) any one of which iii-ay he engaged by a spring pr pin (5.1. "The latter serves to frie'tionally iid the track in any of e plurality olf p erinined posiu G5 tions So that the distance between the tracks may be varied to correspond'with barrels of various lengths. The roll 48 is suliiciently long to receive the head a of a barrel, in any of the various positions of track 55.

The rolls l-17 and 48 are movable axially by means of a brackct'62 (Fi 7 and 18) which connects both rods 46 an( is adjustably lixe'd thereto. Bracket 62 has a central upwardly extending portion which lies in the rearward pa h of chuck 38 and is adapted to ,be moved tl zr'eby. Referring to Fi 2 as the chuck 38 is retracted, iteventually en gages bracket 62 and on continued moveH ment carries the latter to the position shown in Fig. 1B, whereby rolls 47 and '48 are alined, as shown in Fig. (S, with their respective trackw'ays.

After the barrel has been placed upon the rolls as described, the chuck 38 is moved to the right by fluid pressure on piston 4l. On continued movement chuck 38 engages the left hand head o and thereafter the rolls 47 are moved by theengagemcnt of flange oi' the head with the flanges of the rolls i7. Thus, rods 4G 4which are slidably mounted before stated, and rolls` 48 are shifted axially out of alincinent with the trackway. Continued movement of thechuck 38 forces the heads a upon the chucks while still Supported by the rolls 47 and 48. The parts are then positioned as in Fig. 2. It is to be noted that the rolls are always moved into the same position by the retraction of chuck 38 but. when moved in the other direction, they may occupy various posit-ions corresponding to the length of the barrelused.

rlllie means for joining the heads a to shell i; will next be described. Referring to Figs. l and l, mounted on bed. plate A is a bracket F and also a slidable bracket .or carriaigc 1"", which brackets are arranged Centrally below the chucks 37 and 3S, respeclively.V Pivoted to each bracket at 63 (Fig.

\3) is a lever o4 having forked extensions 65A` and (35 on each side of pivot 63. Supported in thc extensions 65 and 65 (preferably by means of roller. bearings) are rolls 66 and (50 whichl are arranged to effect the prelilni nary and inal crimping operations 'esj ectively on the barrel heads. Supporedpon lateral extensions of brackets F and ,',are cylinders til' and movable therein are pistons 68` which are connected by rods 69 .to the lower ends of leversI (54. (,)pposite ends of the cylinder are connected by pipes 70 and 4 7l (Figs. 1", 1*', and S) to a valve 72 (Fig. lbwhich is supplied with fluid under pressure by a pipe 73.

The interior of valve 72 shown in diagrannnatical "loi-1n in Fig. 2], to which refercnce is now made. A rotatable element 74 has two cored passages 75 of elbow form which may be positioned as shown to connect pipe 7l to a supply pipe 73 and to connect pipe 70 to Yan exhaust pipe 76 When eleto force istons 68 to the right as viewed in 3,* orcing roll 66 against the barrel. enelement 74 is turned l.ninety degrees ."fluid will be admitted to pipe 70 and eX- hausted from pipe 71, thus.l retracting rolls 66 and forcing rolls 66 against the barrel.

After both thei'olls 66 and 66 have operated upon the barrel, the lever 64 must be restored to neutral position, as in Fig. 3,

to permit removal of the barrel. This is accomplished by moving element 74 so that each passage 75 connects a port 77 to an auxiliary exhaust port 78. The ports 77 are connected to pipes 70 and 71 but are normally'closed off by the element 74, as shown in Fig. 21. It will bev seen that when element 74 is moved to its neutral position as described, cylinders 67 are exhausted on both -sidesof pistons 68. 'The roll 66 is the last to bear upon the barrel, so that when the criinpingoperation is completed roll 66 remains elevated. However, when element 74 is moved to neutral position, the roll 66 may then be drawn down by a spring 79` (Fig. 3) This spring has just sufficient tension to move leve-r 64 into the position shown in Fig. 3 and has a loose slidable connection with bed plate A so that when roll 66 is elevated, the spring will not be compressed. 'It will thus be seen that after the rolls 66 and 66v have operated, they may be restored to the osition shown in Fig. 3 by spring 79 after e ement 74 has been moved to neutral position as described. It is to be under- .the shell b.

stood.` ofv course, that the mechanism described in connection with Fig. 3 is dupli cated by like mechanism on the bracket F all operated from valve 7 2.

' The rolls 66 and 66 function to roll the flanges c of heads ci into interlocking relation with a similar but shorter flange d on The arrangemept of head a, and flange o with relation to shell Z) and flange d prior to the operation of rolls 66 and 66 is clearly shown 'in Fig. 13. As the roll 66 is forced upwardly by the'means described, a groove in the roll engages the flange c and. bends it to the right (as viewed in Fig. 13) and eventually the flange' d is bent by the action of flange c thereupon. Roll 66 brings the parts into Athe relative positions shown in Fig. 14. The final crimping operationis effected` by roll 66', the

roove of which is of slightly different con- ,fr vas shown in Fig. 15, ywhich figure also snowsthe completed joint between the. heads .errand shell l). It is to be noted that the paint applied tothe flanges c as described is forced into ali. the interstices between flanges c and d to form a tight leakless joint therebetween.: Furtlien description of-theeimped standing oftheinventionastliisftype of ljoint is generally Well understood in the art. The machine, however', is designed to hold such rolls and do such crimping Work as the rolls may be designed for and a special fo'rm of crimped `joint which may be made to advantage in this machine is disclosed in my copending application Serial No. 165,400 filed A ril 30, 1917.

The rolls 66 anc 66 must always come into a definite predetermined position with respect to the chucks. The right hand set of rolls and chuck 37 are always so positioned since neither is capable of' relative jaxialmovement. The chuck 38,y however, moves to various positions depending on the length of barrel employed and, there,-

fore, means must be provided (if different sized barrels are to be formed) to -cause' the rolls 66 and 66 in carriage F to aline with chuck ii'liatever the position of the latter may bc. This resultis obtained by connecting the chuck shaft to carriage F so that the two move. in unison. Referring to Fig. 3, the carri'fln ll" is slidably mounted in suitable ways formed. centrally in the bed plateand held thereto by a -rack fixed on. the vlower part of shaft 39' as clearly Vshown in Figs. l. and 1b. It will thus be seen that, as chuck 38 is moved back and forth, the carriage F is moved therewith, the gears 82 and 64 being of" equal diameter.

Chuck 38, as has been explained may 'onits forward stroke assume Avarimis positions and thus carriage Fwill also come to rest in various positions, according to the length4 of the. barrel being joined.

It is desirable to hold firmly to the bed plate in any of itsworking positions. The means for accomplishing this function arc clearly shown in Figs. .1l and, 3 and will now be described. The bed the 'carriage F i ill) 5 plate A is recessed below one sideedge of l l 'the base of carriage.v F to receive a Wed e 86 which, when positioned as in B, forces the member F upwardly against gibs izp 86 and prevents vmovementV of the member.v

F in any direction. By moving the wedge 86 to the left fom the positionne viewed in Fig. 1, it is lowered below the bottom of i the carriage to permit free sliding move ments ofthe latter, Yi/ledge 86 is pivotally connected'to a rod 87 which .is fixed in and extends between spaced ears of a yoke 88.

right (Fig. 1) aV ainst the tension of a coiled-,spring 90. lement 89 is pivoted to an arm 91 Whichis fixed to a short hori zo'ntal shaft 9 2 'mounted in left hand pedestal B (Fig. 1). Arranged without the pedestal and fixed to the' outer end of shaft 92 is a lever 93 which. isadapted for manual operation to operate the wedge 86. Arm 91 is connected by a rod 94 to the lower end ofthe described lever 31, s o tha as the 91 ismoved to the right from the position-shown in Fig. 1', the wedge 86 is retracted to `free carriage F', and lever 31 is actuatedto cause the disconnection of shafts and 26 and to apply the shoes 33 to the brake Vdrum 32. Lever 93 is provided with a slidable dog 94 'which may engage 1n either of the stops 95- formed on the support for shaft 92, thejlever being forceditoward the right by the spring 90 in an obvious manner.

' Dog 94 is connected by a link96 to a spring pressed bell crank lever 97 pivoted to lever .93. Lever 97 when pressed toward the latter withdraws dog 9-1 vfrom stops 95 in an obvious manner to ermit movement of-the lever93. Y.It isto e noted that, although the latter is always moved. a constant amount to actuate-the brake and clutch,l the wedge 86 being movable only through spring 90 `may move variable distances as necessltated by the positiofn of vcarriage F and is yleldinglyorced Ainto position to clamp the car riage. 'The-lA withdrawal of the wedge, how# ever, is effected positively by the abutment of members 89 and 88. j

The means for stripping the barrel -from the chucks 37 and38 will next be described. Referring to Figs. l, 1", and 7, vertically beloweach of the described rods 46 and mounted for sliding movement in a similar manner is a rod 98. Fixed to one of the rods 98 is' an arm 99, which as best shown in Fig. 7 extends upwardly toward chuck 38 and has a curved upper portion concentric with the chuck. The shape of arm. 99 is such that it may move relatively to chuck 38. the member 62. or rolls 66 and 66V without interference. Referring to Figs. 1 and 2, fixed to rods 98 adjacent chuck 37 is an arm 100, which is bent `in the form shown so that a portion thereof lies just to the rear of the head (L and just below the lower peripheral portion of chuck 37. Referringto Fig. la. the rods ,98 are connected together adjacent the left id pedestal B, by a member 101. .The latter isfadapted to be moved to thel left from the position shown in Fig. 1* b v the retraction ot' chuck 36 to :actuate the parts 99 and 100. The member 100, as will best be seen from Fig. 2, will engage the head rf, of the barrel and force it froin4 the stationary chuck 37. The member 100. as will be apparent from Fig. 1*. can move to the left only a limited distance Vas itI finally abuts a bracket on pedestal F, On

continued movement of chuckfS to the left, the barrel will bel carried therewith, the right end thereof being supported-on rolls 4.8. Eventually chuck 38 will pass the arm 99 and the latter, being prevented from movement to the left, as described, will remove the head a from chuck 38. The parts then are positioned as Shown in Fig. 6. The completed barrel is thenl supported on rolls -17 and 4 8, although the barrel has been pur posel omitted from Fig. 6 to reveal parts there elow.

nThe means for movin the .member 101 willy next be described. eferring to Figs. 1, 18, and 19, al guide bar 102 is secured in horizontal 'position' to a suitable bracket secured to the left hand pedestal B and extends forwardly therefrom. Bar 102 is of the cross sectional. shape shown in Fig. 16 and slidably mounted on the bar is a member 103 (Figs. 17, 18, an'd 19). Bar 102 hasv a recess formed therein as shown in Fig. 18

and one wall of the recess forms a. cam surl against the tension of aspring 105 is a pin 106, the lower part of which is of square .crosssection and adapted to engage in a square socket formed in the described mem-V ber 101. VPin 106 is cut away as shown in Fig. 17 to receive bar 102 and a. shoulder 1.07 on the pin normally rests in .the described recess in .ba-r 102 in that it is positioned -as shown in Fig, 17 to engage the member 101'. The member 103 is movable to the left (Fig. 1*) by the retraction of chuck 38, and, as it is thus moved, shoulder 107 of pin 4106 rides up on cam 104 and eventually withdraws the pin from member 101. Thereafter the mem'bcr 103 moves idly on slide bar 102 wit-hout moving the member 101 or the rods 98 and 46. The latter are given just suliicient movement to abutr arm 100 with the bracket onl'pedestal F asdescribed.- r

Threaded into the rearl side of member 103 is a stud 108.wl1ich passes through a suit# able slotin a bar 109 as best shown in Figs. 17 and 20. Bar 109 may be clamped to mem-y ber 103 in various positions of adjustment horizont-ally forward toward chuck 38 and in its forwardV end hasl'a transverseI slot `111 (Fig. 19) which as shown in Figs. 1l and 18 is engaged by a circular rim 112 on chick neet with member 101. .Further movement of chuck 38 to the right willcanse the rods 98 to be moved to bring the arms. 99 and' 100 into their origina-l positions shown in F igs. Il and 1b, respectively, It will be obvious' that Ifor 'barrels of various len h,

of the len h. of barrel employed by the ad-.

justmnti iustated in Figs. i9 and 2o.

The means for ej ecting'the completed barrel from the machine will next be described. The barrel, after chuck 38 has been retracted, iSIet upon the supporting rolls 47 and ferring to Figs. 6 and 12, a short ,shaft'f`14 is rotatably mounted in suitable ears fiimed on the rear of the described brackets D. Fixed to shaft 114 in spaced relation are two levers 115which are normally held by their weight in the position shown by full lines in Fig. 12. The levers 115are curved to lie closely adjacent and substantially concentric to shell b and one thereof (Fig. 12) is connected by a link 118 to an arm 117 fixedi on the end cfa shaft 118. The latter is mounted in suitable lugs formed on'the interior of bed A and extends alon the rear walls of the bed to the left han ,end'thereoii A suitable foot treadle 119 is' fixed on shaft 118 (Figs 1 and 12) whereby.

the latter may be turned to swing both levers 115 into the position shown by dotted lines in Fig.;A 12. The levers 115 raise shell b from olls 47 and 48 and throw itupon a discharge runway which comprises two spaced parallel tracks 120. The latter are inclined downwardly toward and deliver the com' leted barrels upona suitable platform K (Fig. 12.)..

The operation of the machine will next be described. Assuming that the chuck 38 is retracted, a flanged barrel shell b, -with the flanged heads a, inserted therein, is` rolled from platform E onto tracks 54 and 55. As the barrel rolls .downwardly toward the machine, the flanges of shell b pick up paint from the trough in the trackways .and acquire sulli-cient momentum to jump the space between the ends of the tracks 54 and 55 and the rolls.' 47 and 48 or they may be carried 1 over this space by hand. The barrels thus are deposited on the rolls which are yieldable to absorb the shook imparted by the incoming bai-rel. The rolls 47 and 48 support the b arrel'in alinement withl chucks 3-7 and 38. Valve 44 is then actuated to admit fluid under pressure into the left hand end of roll the cylinder 40 and chuck 38 is thereby forced to the'right. As chu-ck 38 moves lto-'Mtlie right, it engages one head a of the barrel, and, since lthe flan e c of the head lies between the flanges o rolls 47, the latter, rods 46, and rolls 48 are moved therewith. Thus,

the barrel may be shifted longitudinally' of the machine while still eectively supported by the rolls in proper position for its engagement with the chucks. Eventually, the chucks 37 and 38 are forced into the heads c and are thereafter held thereto by the pressure which is maintained on piston 41. fIhe carriage F', meanwhile has been moving in unison with chuck 38 and becomes positioned as shown inv Fig. 11.

lhe barrel is next to be rotated. Lever -93 is pulled toward the left into the posi tion shown in Fig. 1, and the lever effects simultaneously a release of brake drum 32 from its shoes and a connection of shafts 25 and 26, whereby chucks 37 and 38 with the barrel therebetween are rotated. The wedge 86 is also yieldingly forced to the right by lever 93 to clamp the carriage F to the bed plate. The-valve 72 is then operated to admit fluid .under pressure to the right hand side of pistons 68 (Fig. 3), whereby rolls` 66 are simultaneously forced against the flanges c and thereafter against'the ilanges .d to roll them into the interlocking 'relation shown in Fig. 14. Valve 72 is then moved to admit fluid under pressure to the left hand side of istons 68 which cause -the regtraction of ro ls 66 and the elevation-'of rolls 66 intoengagement with'the bent and intere: locked flanges c and d. Rolls 6G complete the crimping of the heads a to shell- ,bi and parts in to the position shtivvn' in Fig. 15.v The completed barrel is th'niready for removal. i

.Prior to removalof the barrel, valve 72 is turned to neutral position to equalize the' pressure on both sides of pistons 68 whereby springs 7 9 may bring rolls 66 and 66 tothe positionshown in Fig. 3. Lever 93 is then vmoved to the right vas-viewed in Fig. 1, to

retract Wedge 86 and release carriage F Simultaneously, the'clutch is moved to disconnect shafts 25 and 26 and brake shoes 33 are forced against drum 32 to quickly stop the rotation of the chucks and the barrel..

Valve 44is then moved to admit fluid under pressure to the right hand side of piston 41, whereby chuck 37 is moved to the left carrying carriage F therewith into the position shown in Fig. 18. f

As `chuck moves Ito the left bar 109 isv moved therewith, and so also are the mem bers 108;v and 101 which are connectedjto'- gether by pin 106.. The arm 100, thusis moved to the left as viewed in Figs. 1""and 2 and forces the head a from chuck 37 Continued movement-of bar .109 causes the dis connection of members 101 andV 103 by the -nnagcn'lent of pin 106 with cam 104. Rods Us are thus moved just suliiciently to strip ilu head o from chuck 37 by means of arm 100 and are held 'against further movement by the abutment of arm 100 with the bracket on pedestal F. Continued movement. oit bar 100'moves member 103 idly on the slide bar 102.` 4

As the chuck 38 moves still farther to the left, the barrel is carried therewith as also are the rolls 47 and 48, until the head o on chuck 38 comes into engagement with the arm 109. The latter being stationary prevents further movement of the barrel, and the chuck 38 withdraws therefrom, leaving the barrely upon rolls 47 and 48. Further movementof chuck 38 will not move rolls 47 and 4`8`until it engagesthe bracket 62.

Thus the rolls 47 become spaced from chuck 38 and,f are thereafter moved together inl spaced@ relation until piston 41' reaches the end ptits stroke. The parts then are ositioned as shown in Figs. 6 and 18. he ,treadle 119 is then depressed to c' use ejector levers 115 to discharge the barrel upon the delivery runways 120.

0n a succeedingfmovement of chuck 38 to the right, the bracket 62 remains stationary until the ichuck enga es the head @of another'barrel delivere upon rolls 47and 48 as described, and thereafter rolls 47 and 48 and -bracket 62 are moved as already described into the position shown in Figs. 1 and 1b. Near the end of the movement of chuck 38 to the right pin 10G rides down they Vcam'104 and connects ywith member 1.01,

. matic manner.

wherebyv the arms 99 and 100 are restored to the positions shown in Figs. 1a and 1. The operations above described are then repeated.

It Will thus be seen that the machlne is capable of simultaneously joining both heads of a barrel to its shell in a rapid and auto Furthermore, barrels of various lengths inay'be handled by the machine'. with only a relatively few' adjustments, namely, the adjnstn'lent of track 55 and the adjustment of bar 100 relatively to the member 1,03.. lrovisionhas been made in the illustrated embodiment of the invention for barrels 'of threey standard lengths. Obviously, the range of adjustment may be extended so that barrels of still other ilengths may equally-vll be handled. An. important feature of the structure described consists in the arrangement for positive clamping of the barrels to the chuck irrespective of slight variations in their length for the movement of chuck 38 to the right is limited only b v the. barrel itself after it has been positively clamped between the4 chucks. ,L l' rthelr feature ot' importance is in the conoci-ting means between chuck #i8 and carriage l" which permits the latter to move in unison with the former so that the rolls 66 and l66 are always maintained in proper cooperative relation with the chuck 38. irrespective of the various positions which the latter may assume.

The invention has been described in one of its preferred forms but the scope of the inv4 vcntion may be considered to include varthe work and so that both dies may be held away from the work when desired.

2. A barrel machine, comprising in combination, a frame, a reciprocable horizontally arranged bearing,r shaft, an alined rotatable shaft, a chuck rotatably mounted on the bearing,r shaft, and a like chuck xed on4 the rotatable shaft, power `means toreeipro-l cate the frstmentioned shaft and: power means to rotate the second mentionedI shaft, means to strip the barrel from eacla of said chucks, movable into and out of barrel stripping position by said shaft, and means to automatically connect and disconnect said4 shaft and stripping means so that the stroke of the. latter is less than that of said shaft.

3.4 A barrel machine, comprising, a frme,

two axially-:dined rotatable holdmgh'ucks therein, means to move one 4of the-latter to and from the other to gripand release the heads and body of a partially-formed barrel for the hcadmrnnpmg' operations, each 0f said chucks having a rigid peripheral supporting surface for 'the overlapped barrel head and body portions, means to rotate Said lot' chucks with the assembled barrel.'therebe-V tween. rotatable crimping rolls or dies movable toward said surfaces to engage the over# lapped portions of the barrel head and body and crimp the same during the rotation 0f the chucks. mcansactuated by fluid p'les'-l ,l sure to force saldi` rolls against said pori tions, a frame to e'arry the crimping roll .for the movable chuck and the roll-actuating means for such chuck. and meansA to move such frame in unison with its chuck.

4. A barrel machine, comprising, a frame, two xisrllvalined rotatable i therein, iiieans to move one of the latter to and from the other to grip and release the heads and body of a partially-formed barrel for the head-c-rimping operations, each of said chucks having a rigid peripheral sul'il'iorting surface for the overlapped barrel head and body portions, means to rotate holding chucks l i mii said chucks .Withthe assembled barrel'there- "between, movable toward said surfaces to engage lthe overlappedportions ofthe barrel head and rotatable crimping rolls or., dies body' and crimp the sameduring they rotation ofthe chucks, means actuated by fluid pressure to force saidV rolls against said portions, a frame tc carry the crimping roll for the movable chuck and the roll-actuatin means for such chuck, means to move suc v'frame in unison with 'its chuck., and mechanism independent of the last-named meansto rigidly hold the movable frame in any of the positions to which it is moved.

5.` A barrel machine, comprising, a frame, rotatable chucks therein lhaving their axes arranged in a common horizontal line, supporting roll-s adapted to hold a. barrel body and assembled heads in line to be gripped by said chucks, means `to move one chuck ltoward and away from the other, means to rotate the chucks, crimping rolls, means to force the latter against the work to join the heads and barrel body, and means engageable with-the work closely adjacent the periphery of the chucks to strip the former from the latter. l

6. A barrel machine, comprising, a frame,

rotatable chucks therein having their axes arranged in a common horizontal line, supporting rolls adapted to hold a barrel body and assembled heads in line to be gripped by said chucks, means'to move one chuck toward andaway from the other, means to rotate the chucks,l crimping rolls, rmeans to force the latter against the work to join the heads and barrel body, means to strip the work from the chucks, means to feed the assembled work to the supporting rolls, and means to lift. the finished barrel from the latter -and eject ,it from said machine.

7. A barrel machine, comprising in combination, a frame, a reciprocable horizontally arranged bearing shaft, an alined rotatablc-shaft, a chuck rotatably mounted on the bearing shaft, and a like chuck ,ixed on the rotatable shaft, power means to reciprocate the' first mentioned shaft. and power means to rotate the second mentioned shaft, and means to.'strip the barrel from each of said chucks, operatively connected to said reciprocable shaft to act in timed relation to themovement of the latter.

8. A barrel machine, comprising in combination, a frame, a reciprocable horizontally-arranged bearing shaft, an alined rotatable shaft, a chuck rotatably mounted on the'bearing shaft, und a like-chuck fixed on the rotatable shaft, pmvermeans to reciprocate the first-mentioned shaft and powermeans to'rotate the second-mentioned shaft, means to strip the barrel from cach ol' said l ing rolls to successively work a barrel body and assembled chucks, operatively connected to said reciprocable movementhof the latter, and operable' devices between said reciprocable shaft and stripping means to cause the latter to strip .the barrel irst fromy the chuck onthe rota- 'table shaft.

9. Abarrel machine, comprising in combination, a frame, a reciprocablehorizontally-arran ed bearing shaft, analined rotatable sha t, a. chuck rotatably mounted on the bearing shaft, and a like chuck fixed on the rotatable shaft, power means to reciprocate the'frst-mentloned s aft and power means to rotate the second-mentioned shaft, 'means to 'strip the barrel from each. of said chucks operativel connected' to said reciprocable shaft an to act in timed relation tothe movementv of the latter, and devices associated with the strippingmeans to vary lthe point in the movement of the reciprocable shaftat which such means willv act.

10. A barrel machine, comprising, a frame, rotatable and axial] rel body and 'assembled heads ma befdelivered and held inline to.' be ripped. by said chucks, resilient shock-absorh to support said rolls, means 'to move the chucks to and from each other'to grip and release the barrel, crimping rolls, and means to force the latter againstthe the head and barrel body.-

v11. In a. metal working apparatus, a frame,

a rotatable chuck, rotatable crimpthe metal held' by the chuck, a pivoted frame in; which said rolls are mounted one on-each,'side of the pivot, and a cylinder, a piston therein operatively connected to move said frame to forcelirst one roll and then the other against the"``work as the chuck rotates, and means 'to equalize the pressure pn opposite sides ofthe piston to hold Athei 'frame with both rolls away from the workI when said mechanism is idle.

12. A f barrel machine, frame, axially alined chucks therein, one of which is axially movable and the other held from axial movement, an axially shiftable series of supporting rolls adapted to hold heads in line to be gripped by said chucks,'mean's to move one of the latter toward and away from the other to grimaud-release thebarrel, said rolls being axial movable with the barrel duringthe gripping operation, means to A strip the barrel from the chuck, and means ing means'I comprising, a

shaft to act in timed relation to the ,-alined chucks"V4 therein, supporting rolls upon whicha bar- 

